Answer: The Mexican trip with his best friends
Step-by-step explanation:
Ryan cannot choose both options and thus has to make a decision of which option to take. Therefore he automatically sacrifices the other option. This type of decision is relevant and is known as a relevant cost. Relevant costs are costs that differ between alternatives, and thus influence the decision that you will make.
Opportunity cost is a type of relevant cost. This is the option that is given up / sacrificed when one option (laptop) is chosen over another (Mexican trip). In this case the opportunity cost is the Mexican trip when the laptop is chosen.